import time
from datetime import datetime, timedelta

from flask import current_app, jsonify, abort
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from info.utils.common import user_login_data
from info.utils.image_storege import storage
from info.utils.response_code import RET




@admin_blu.route('/news_type', methods=["GET", "POST"])
def news_type():
    if request.method == "GET":
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")
        category_dict_li = []
        for category in categories:
            category_dict_li.append(category.to_dict())
        category_dict_li.pop(0)
        data = {
            "categories": category_dict_li
        }
        return render_template('admin/news_type.html', data=data)
    category_id = request.json.get('id')
    category_name = request.json.get('name')
    if  not category_id :
        category = Category()
        category.name = category_name
    else:
        try:
            category_id = int(category_id)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DBERR, errmsg="查询错误")
        category = Category.query.get(category_id)
        category.name = category_name
    try:
        db.session.add(category)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="查询错误")

    return jsonify(errno=RET.OK, errmsg="成功")




@admin_blu.route('/news_edit_detail', methods=["GET", "POST"])
def news_edit_detail():
    if request.method == "GET":

        news_id = request.args.get('news_id')
        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")
        if not news_id:
            abort(404)
        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")
        if not news:
            return render_template('admin/news_edit_detail.html', errmsg="数据错误")
        categories = []
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")
        category_dict_li = []
        for category in categories:
            if category.id == news.category_id:
                category_dict_li.insert(0, category.to_dict())
            else:
                category_dict_li.append(category.to_dict())
        category_dict_li.pop(1)
        data = {
            "news": news.to_dict(),
            "categories": category_dict_li
        }
        return render_template('admin/news_edit_detail.html', data=data)
    news_id = request.form.get('news_id')
    title = request.form.get('title')
    digest = request.form.get('digest')
    content = request.form.get('content')
    index_image = request.files.get("index_image")
    category_id = request.form.get('category_id')
    key =None
    if index_image :
        try:
            index_image = index_image.read()
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.DATAERR, errmsg="上传失败")
    if not all([title,digest,content,category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="查询错误")
    try:
        category_id = int(category_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
    news = News()
    news.title = title
    news.category_id = category_id
    if key :
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
    news.digest = digest
    news.id = news_id
    return jsonify(errno=RET.OK, errmsg="成功")


@admin_blu.route('/news_edit')
def news_edit():
    """新闻编辑"""
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status == 0]
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_edit.html', data=context)


@admin_blu.route('/news_review_action', methods=["POST"])
def news_review_action():
    # 1. 接受参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2. 参数校验
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if action not in ("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 查询到指定的新闻数据
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    if action == "accept":
        # 代表接受
        news.status = 0
    else:
        # 代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="请输入拒绝原因")
        news.status = -1
        news.reason = reason

    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
    if not news:
        return render_template('admin/news_review_detail.html', data={'errmsg': "用户名或者密码错误"})

    data = {
        "news": news.to_dict(),
    }
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get('page', 1)
    keywords = request.args.get('keywords', None)
    news = []
    total_page = 1
    current_page = 1
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
    filters = [News.status != 0]
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        total_page = paginate.pages
        current_page = paginate.page
        news = paginate.items
    except Exception as e:
        current_app.logger.error(e)
    news_list = []
    for news in news:
        news_list.append(news.to_review_dict())
    data = {
        'total_page': total_page,
        'current_page': current_page,
        'news_list': news_list
    }
    return render_template('admin/news_review.html', data=data)


@admin_blu.route('/user_list')
def user_list():
    page = request.args.get('page', 1)
    users_list = []
    total_page = 1
    current_page = 1
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)

    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        total_page = paginate.pages
        current_page = paginate.page
        users_list = paginate.items
    except Exception as e:
        current_app.logger.error(e)
    user_dict_li = []
    for user in users_list:
        user_dict_li.append(user.to_admin_dict())
    data = {
        'total_page': total_page,
        'current_page': current_page,
        'users': user_dict_li
    }
    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/user_count')
def user_count():
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)
    mon_count = 0
    t = time.localtime()
    begin_mon_time = '%d-%02d-01' % (t.tm_year, t.tm_mon)
    #     字符串转化为datetime对象
    begin_mon_date = datetime.strptime(begin_mon_time, "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.create_time > begin_day_date, User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)
    active_time = []
    active_count = []
    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = begin_date + timedelta(days=1)
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }
    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html', user=user.to_dict())


@admin_blu.route('/login', methods=["POST", "GET"])
def login():
    if request.method == "GET":
        user_id = session.get('user_id')
        is_admin = session.get('is_admin')
        if user_id and is_admin:
            return redirect(url_for('admin.index'))
        return render_template('admin/login.html')
    username = request.form.get('username')
    password = request.form.get('password')
    if not all([username, password]):
        return render_template('admin/login.html', errmsg="查询错误")
    try:
        user = User.query.filter(User.nick_name == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="查询错误")
    if not user.check_passowrd(password):
        return render_template('admin/login.html', errmsg="查询错误")
    session['user_id'] = user.id
    session['is_admin'] = True
    session['nick_name'] = user.nick_name
    session['mobile'] = user.mobile
    return redirect(url_for('admin.index'))
